The IDEX Online Polished Price Report - October 2017

(IDEX Online News) – There were relatively low levels of activity in round diamonds in October. Declines were noticeable in several categories of 0.80-0.89 carat stones, as well as in H-I, IF-VVS1 diamonds in the 0.90-0.99 carat category, and L-N, SI2-SI3 diamonds in 5.00-5.99 stones. Meanwhile, there were increases in a range of diamonds in the 0.70-0.79, 0.80-0.89 and 1.00-1.24 carat categories.

As with rounds, fancy diamonds also again saw low levels of activity last month. There were declines in a range of 0.50-0.69-carat categories, and in 0.70-0.79 carat diamonds in IF to VVS1 stones. Meanwhile, there were rises in several categories of 5.00-5.99 carat stones, in H-I, IF-VVS1, and L-N, SI1 diamonds.

The following are some of the changes in this week's IDEX Online Diamond Price Report.

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Rounds

• 0.18-0.22 cts Just two changes, upwards
• 0.23-0.29 cts Just one change, upwards
• 0.30-0.39 cts H-K / VVS1 -2%, K/ VVS2 +3%
• 0.40-0.44 cts D / SI3-I1 -2%, L/ IF-VVS2 +2-3%
• 0.45-0.49 cts M-N / SI1 -4%, I / SI2 +3%
• 0.50-0.69 cts H / VVS1 -4%, I / IF +2%
• 0.70-0.79 cts I-J / VVS1 -2-3%, G-I / VS1 +1-3%
• 0.80-0.89 cts G-H / SI1-SI2 -2%, F / SI2-I 1+1-3%
• 0.90-0.99 cts H-I/ IF-VVS1 -2-6%, J / I1 +4%
• 1.00-1.24 cts E/ VS2 -3%, F-1 / VVS1-VVS2 +2-3%
• 1.25-1.49 cts D / VVS1-VVS2 -2%, F / VVS2 +1%
• 2 cts M / VS2 -3%, E / IF-VVS1 +1-3%
• 3 cts Just three changes, one up and two down
• 4 cts Unchanged
• 5 cts L-N / SI2-I1 -2-3%, D / SI1 +3%

Fancy Cuts

• 0.18-0.22 cts Just two changes, one up and one down
• 0.23-0.29 cts Just one change, upwards
• 0.30-0.39 cts E / VS1 -2%, H / VS1 +3%
• 0.40-0.44 cts H / I1 -5%, I / VVS1 +2%
• 0.45-0.49 cts G / VVS2 -2%, G / SI2-SI3 +3%
• 0.50-0.69 cts Decliners in several categories, no risers
• 0.70-0.79 cts D-I / IF-VVS1 -2-3%, F / I1 +2%
• 0.80-0.89 cts Just three changes, all decliners
• 0.90-0.99 cts K-L / VVS1-VVS2 -3-4%, G / IF +3%
• 1.00-1.24 cts Just three changes, all decliners
• 1.50-1.99 cts H / VVS1-VVS2 -1-3%, L / VS2 +3%
• 2 cts E-F / VVS2 -3%, E / VS2 +3%
• 3 cts Just one change, a riser
• 4 cts E / SI3-I1 1-3%

• 5 cts E-H / SI2 -2%, H-I / IF-VVS1 +2-3%